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Cartilage regeneration

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https://www.readbyqxmd.com/read/29165318/unidirectional-bmp2-loaded-collagen-scaffolds-induce-chondrogenic-differentiation
#1
Michiel W Pot, Laurie M G de Kroon, Peter M van der Kraan, Toin H van Kuppevelt, Willeke F Daamen
Microfracture surgery may be improved by the implantation of unidirectional collagen scaffolds that provide a template for mesenchymal stem cells to regenerate cartilage. Incorporation of growth factors in unidirectional scaffolds may further enhance cartilage regeneration. In scaffolds, immobilization of growth factors is required to prolong in vivo activity, to limit diffusion and to reduce the amount of growth factor needed for safe clinical application. We investigated the immobilization of bone morphogenetic protein 2 (BMP2) to unidirectional collagen scaffolds and the effect on in vitro chondrogenesis...
November 22, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29164815/application-of-kartogenin-for-musculoskeletal-regeneration
#2
REVIEW
Gun-Il Im
Kartogenin (KGN) is a recently characterized small molecule that promotes the selective differentiation of mesenchymal stem cells into chondrocytes, and thus, KGN stimulates cartilage regeneration. KGN also possess chondro-protective effect. Furthermore, because it is highly stable small molecule, KGN can be stored and transported at room temperature. These obvious superiorities over peptide growth factors make KGN a desirable chondrogenic agent for cartilage regeneration. Since its discovery, KGN has drawn much attention as a new chondrogenic drug for intraarticular (IA) treatment...
November 22, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29164111/cartilage-and-muscle-cell-fate-and-origins-during-lizard-tail-regeneration
#3
Ricardo Londono, Wei Wenzhong, Bing Wang, Rocky S Tuan, Thomas P Lozito
Introduction: Human cartilage is an avascular tissue with limited capacity for repair. By contrast, certain lizards are capable of musculoskeletal tissue regeneration following tail loss throughout all stages of their lives. This extraordinary ability is the result of a complex process in which a blastema forms and gives rise to the tissues of the regenerate. Blastemal cells have been shown to originate either from dedifferentiated tissues or from existing progenitor cells in various species, but their origin has not been determined in lizards...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29164105/platelet-rich-plasma-derived-growth-factors-contribute-to-stem-cell-differentiation-in-musculoskeletal-regeneration
#4
REVIEW
Yun Qian, Qixin Han, Wei Chen, Jialin Song, Xiaotian Zhao, Yuanming Ouyang, Weien Yuan, Cunyi Fan
Stem cell treatment and platelet-rich plasma (PRP) therapy are two significant issues in regenerative medicine. Stem cells such as bone marrow mesenchymal stem cells, adipose-derived stem cells and periodontal ligament stem cells can be successfully applied in the field of tissue regeneration. PRP, a natural product isolated from whole blood, can secrete multiple growth factors (GFs) for regulating physiological activities. These GFs can stimulate proliferation and differentiation of different stem cells in injury models...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/29158995/the-role-of-biomaterials-in-the-treatment-of-meniscal-tears
#5
Crystal O Kean, Robert J Brown, James Chapman
Extensive investigations over the recent decades have established the anatomical, biomechanical and functional importance of the meniscus in the knee joint. As a functioning part of the joint, it serves to prevent the deterioration of articular cartilage and subsequent osteoarthritis. To this end, meniscus repair and regeneration is of particular interest from the biomaterial, bioengineering and orthopaedic research community. Even though meniscal research is previously of a considerable volume, the research community with evolving material science, biology and medical advances are all pushing toward emerging novel solutions and approaches to the successful treatment of meniscal difficulties...
2017: PeerJ
https://www.readbyqxmd.com/read/29158053/transforming-growth-factor-beta1-promotes-articular-cartilage-repair-through-canonical-smad-and-hippo-pathways-in-bone-mesenchymal-stem-cells
#6
Jun Ying, Pinger Wang, Shanxing Zhang, Taotao Xu, Lei Zhang, Rui Dong, Shibing Xu, Peijian Tong, Chengliang Wu, Hongting Jin
AIMS: Transforming growth factor-β1 (TGF-β1) is a chondrogenic factor and has been reported to be able to enhance chondrocyte differentiation from bone marrow mesenchymal stem cells (BMSCs). Here we investigate the molecular mechanism through which TGF-β1 chronically promotes the repair of cartilage defect and inhibit chondrocyte hypertrophy. MAIN METHODS: Animal models of full thickness cartilage defects were divided into three groups: model group, BMSCs group (treated with BMSCs/calcium alginate gel) and BMSCs+TGF-β1 group (treated with Lentivirus-TGF-β1-EGFP transduced BMSCs/calcium alginate gel)...
November 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/29150936/the-roles-of-wnt-%C3%AE-catenin-pathway-in-tissue-development-and-regenerative-medicine
#7
REVIEW
Maryam Majidinia, Javad Aghazadeh, Rana Jahanban-Esfahlani, Bahman Yousefi
Regenerative medicine is a translational field which combines tissue engineering and molecular biology to construct spare organs or help injured or defective tissues to regenerate or restore their normal functions. This is particularly important with specific organs such as heart, central nervous system, retina or limbs which possess very limited regenerative capacity. As such, regenerative medicine has received peculiar attention in the last decade. In this regard, Wnt/β-catenin signaling pathway has been subject to intensive research, since it plays many essential roles in the regulation of the progenitor cell fate, developmental decisions, proliferation during embryonic development, and adult tissue homeostasis...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150917/regulation-of-mesenchymal-stem-cell-differentiation-by-transforming-growth-factor-beta-superfamily
#8
Jelena Krstic, Drenka Trivanovic, Hristina Obradovic, Tamara Kukolj, Diana Bugarski, Juan F Santibanez
The ability to differentiate into cells of different lineage, such as muscle, bone, cartilage and fat, is the chief value of adult mesenchymal stem cells (MSCs) which can be used with the final aim to regenerate damaged tissue. Due to potential use, as well as importance in tissue development, a number of questions have been raised regarding the molecular mechanisms of MSC differentiation. As one of the crucial mediators in organism development, transforming growth factor beta (TGF-β) superfamily directs MSCs commitment in the selection of differentiation pathways...
November 16, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/29147820/cue-signal-response-analysis-in-3d-chondrocyte-scaffolds-with-anabolic-stimuli
#9
Michael Neidlin, Antonion Korcari, Giorgos Macheras, Leonidas G Alexopoulos
Articular cartilage is an avascular connective tissue responsible for bearing loads. Cell signaling plays a central role in cartilage homeostasis and tissue engineering by directing chondrocytes to synthesize/degrade the extracellular matrix or promote inflammatory responses. The aim of this paper was to investigate anabolic, catabolic and inflammatory pathways of well-known and underreported anabolic stimuli in 3D chondrocyte cultures and connect them to diverse cartilage responses including matrix regeneration and cell communication...
November 16, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29146943/cryopreservation-of-human-mesenchymal-stem-cells-in-an-allogeneic-bioscaffold-based-on-platelet-rich-plasma-and-synovial-fluid
#10
Haritz Gurruchaga, Laura Saenz Del Burgo, Ane Garate, Diego Delgado, Pello Sanchez, Gorka Orive, Jesús Ciriza, Mikel Sanchez, Jose Luis Pedraz
Transplantation of mesenchymal stem cells (MSCs) has emerged as an alternative strategy to treat knee osteoarthritis. In this context, MSCs derived from synovial fluid could provide higher chondrogenic and cartilage regeneration, presenting synovial fluid as an appropriate MSCs source. An allogeneic and biomimetic bioscaffold composed of Platelet Rich Plasma and synovial fluid that preserve and mimics the natural environment of MSCs isolated from knee has also been developed. We have optimized the cryopreservation of knee-isolated MSCs embedded within the aforementioned biomimetic scaffold, in order to create a reserve of young autologous embedded knee MSCs for future clinical applications...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146220/autologous-chondrocyte-implantation-for-talar-osteochondral-lesions-comparison-between-5-year-follow-up-magnetic-resonance-imaging-findings-and-7-year-follow-up-clinical-results
#11
Gherardo Pagliazzi, Francesca Vannini, Milva Battaglia, Laura Ramponi, Roberto Buda
Autologous chondrocyte implantation (ACI) is an established surgical procedure that has provided satisfactory results. The aim of the present study was to correlate the clinical outcomes of a series of 20 patients treated by ACI at a 7-year follow-up examination with the magnetic resonance imaging (MRI) T2-mapping 5-year follow-up findings. We evaluated 20 patients using the American Orthopaedic Foot and Ankle Society (AOFAS) score preoperatively and the established follow-up protocol until 87.2 ± 14.5 months...
November 14, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29145495/regulatory-mechanism-of-ccn2-production-by-serotonin-5-ht-via-5-ht2a-and-5-ht2b-receptors-in-chondrocytes
#12
Ayaka Hori, Takashi Nishida, Shogo Takashiba, Satoshi Kubota, Masaharu Takigawa
Serotonin (5-hydroxytryptamine: 5-HT) is recognized as a neurotransmitter in the central nerve system and as a regulator of systemic blood pressure in the peripheral tissues. Recently, it was reported that 5-HT2 receptors (5-HT2Rs) were expressed in cartilage tissues lacking both vessels and neurons, suggesting possible novel functions of 5-HT during cartilage development and regeneration. Our previous data indicated that CCN family protein 2/connective tissue growth factor (CCN2/CTGF) plays a central role in cartilage development and regeneration...
2017: PloS One
https://www.readbyqxmd.com/read/29144022/collagen-a-review-on-its-sources-and-potential-cosmetic-applications
#13
REVIEW
María Isabela Avila Rodríguez, Laura G Rodríguez Barroso, Mirna Lorena Sánchez
Collagen is a fibrillar protein that conforms the conjunctive and connective tissues in the human body, essentially skin, joints, and bones. This molecule is one of the most abundant in many of the living organisms due to its connective role in biological structures. Due to its abundance, strength and its directly proportional relation with skin aging, collagen has gained great interest in the cosmetic industry. It has been established that the collagen fibers are damaged with the pass of time, losing thickness and strength which has been strongly related with skin aging phenomena [Colágeno para todo...
November 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29141683/pellet-coculture-of-osteoarthritic-chondrocytes-and-infrapatellar-fat-pad-derived-mesenchymal-stem-cells-with-chitosan-hyaluronic-acid-nanoparticles-promotes-chondrogenic-differentiation
#14
Shu Huang, Xiongbo Song, Tao Li, Jingfang Xiao, Yemiao Chen, Xiaoyuan Gong, Weinan Zeng, Liu Yang, Cheng Chen
BACKGROUND: Cell source plays a key role in cell-based cartilage repair and regeneration. Recent efforts in cell coculture have attempted to combine the advantages and negate the drawbacks of the constituent cell types. The aim of this study was to evaluate the chondrogenic outcome of articular chondrocytes (ACs) and infrapatellar fat pad (IPFP)-derived mesenchymal stem cells (MSCs) in direct coculture. METHODS: ACs and IPFP MSCs from the same patients with knee osteoarthritis (OA) were cocultured in monolayer and in pellets...
November 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29139602/cell-yield-chondrogenic-potential-and-regenerated-cartilage-type-of-chondrocytes-derived-from-ear-nasoseptal-and-costal-cartilage
#15
Aijuan He, Huitang Xia, Kaiyan Xiao, Tingting Wang, Yu Liu, Jixin Xue, Dan Li, Shengjian Tang, Fangjun Liu, Xiaoyun Wang, Wenjie Zhang, Wei Liu, Yilin Cao, Guangdong Zhou
Functional reconstruction of large cartilage defects in subcutaneous sites remains clinically challenging because of limited donor cartilage. Tissue engineering is a promising and widely accepted strategy for cartilage regeneration. To date however, this strategy has not achieved a significant breakthrough in clinical translation owing to a lack of detailed pre-clinical data on cell yield and functionality of clinically applicable chondrocytes. To address this issue, the current study investigated the initial cell yield, proliferative potential, chondrogenic capacity, and regenerated cartilage-type of human chondrocytes derived from auricular (AU), nasoseptal (NS), and costal (CO) cartilage using a scaffold-free cartilage regeneration model (cartilage sheet)...
November 15, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29137914/orthogonal-potency-analysis-of-mesenchymal-stromal-cell-function-during-ex-vivo-expansion
#16
Danika Khong, Matthew Li, Amy Singleton, Ling-Yee Chin, Shilpaa Munkundan, Biju Parekkadan
Adult bone marrow mesenchymal stromal cells (MSCs) have cross-functional, intrinsic potency that is of therapeutic interest. Their ability to regenerate bone, fat, and cartilage, modulate the immune system, and nurture the growth and function of other bone marrow hematopoietic stem/progenitor cells have all been evaluated by transplant applications of MSCs. These applications require the isolation and expansion scaled cell production. To investigate biophysical properties of MSCs that can be feasibly utilized as predictors of bioactivity during biomanufacturing, we used a low-density seeding model to drive MSCs into proliferative stress and exhibit the hallmark characteristics of in vitro aging...
November 11, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29134949/pla-short-sub-micron-fiber-reinforcement-of-3d-bioprinted-alginate-constructs-for-cartilage-regeneration
#17
Alicja Kosik-Kozioł, Marco Costantini, Tomasz Bolek, Krisztina Szöke, Andrea Barbetta, Jan Brinchmann, Wojciech Święszkowski
In this study, we present an innovative strategy to reinforce 3D-printed hydrogel constructs for cartilage tissue engineering by formulating composite bioinks containing alginate and short sub-micron polylactide (PLA) fibers. We demonstrate that Young's modulus obtained for pristine alginate constructs (6.9 ± 1.7 kPa) can be increased threefold (up to 25.1 ± 3.8 kPa) with the addition of PLA short fibers. Furthermore, to assess the performance of such materials in cartilage tissue engineering, we loaded the bioinks with human chondrocytes and cultured in vitro the bioprinted constructs for up to 14 days...
November 14, 2017: Biofabrication
https://www.readbyqxmd.com/read/29131526/amniotic-mesenchymal-stem-cells-mitigate-osteoarthritis-progression-in-a-synovial-macrophage-mediated-in-vitro-explant-co-culture-model
#18
Natasha Topoluk, Kathleen Steckbeck, Sandra Siatkowski, Brian Burnikel, John Tokish, Jeremy Mercuri
Osteoarthritis (OA) is a disease of the synovial joint marked by chronic, low-grade inflammation leading to cartilage destruction. Regenerative medicine strategies for mitigating OA progression and/or promoting cartilage regeneration must be assessed using models that mimic the hallmarks of OA. More specifically, these models should maintain synovial macrophage phenotype in their native micro-environment. Herein, an in vitro co-culture model of patient-matched human OA cartilage and synovium was assessed for viability, macrophage phenotype, and progressive cartilage destruction in the presence of an inflammatory milieu...
November 13, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29130392/a-novel-hybrid-multichannel-biphasic-calcium-phosphate-granule-based-composite-scaffold-for-cartilage-tissue-regeneration
#19
Albert Jung, Preeti Makkar, Jhaleh Amirian, Byong-Taek Lee
The objective of the present study was to develop a novel hybrid multichannel biphasic calcium phosphate granule (MCG)-based composite system for cartilage regeneration. First, hyaluronic acid-gelatin (HG) hydrogel was coated onto MCG matrix (MCG-HG). Poly(lactic-co-glycolic acid) (PLGA) microspheres was separately prepared and modified with polydopamine subsequent to BMP-7 loading (B). The surface-modified microspheres were finally embedded into MCG-HG scaffold to develop the novel hybrid (MCG-HG-PLGA-PD-B) composite system...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/29128537/biomaterials-for-articular-cartilage-tissue-engineering-learning-from-biology
#20
REVIEW
A R Armiento, M J Stoddart, M Alini, D Eglin
Articular cartilage is commonly described as a tissue made of up to 80% water, devoid of blood vessels, nerves and lymphatics, and populated by only one cell type: at first glance, an easy tissue for clinicians to repair and for scientists to reproduce in a laboratory. Yet, chondral and osteochondral defects currently remain an open challenge in orthopedics and tissue engineering of the musculoskeletal system, without considering osteoarthritis. Why do we fail in repairing and regenerating articular cartilage? Behind its simple and homogenous appearance articular cartilage hides a heterogeneous composition, a high level of organisation and specific biomechanical properties that taken together make articular cartilage a unique material that we are not able yet to repair or reproduce with high fidelity...
November 8, 2017: Acta Biomaterialia
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